A ratiometric fluorescent probe for sensitively tracking peroxynitrite during drug-induced hepatotoxicity.

As one of the essential components of reactive oxygen species (ROS), peroxynitrite (ONOO-) plays an indispensable role in redox homeostasis and signal transduction processes, and its deviant levels are associated with numerous clinical diseases. Therefore, accurate and rapid detection of intracellular ONOO- levels is crucial for revealing its role in physiological and pathological processes. Herein, we constructed a ratiometric fluorescent probe to detect ONOO- levels in biological systems.

Two Consecutive Pathways Competing for Supramolecular Polymerization of Naphthalene-diimide Molecules.

The final outcomes of supramolecular assembly are determined by the pathways and the formation of intermediates during the assembly process. We studied pathway complexity involving two consecutive pathways in supramolecular polymerization of naphthalene-diimide (NDI) derivative molecule. Depending on preparation methods anisotropic aggregates of J-type nanorods (Agg I) or more flexible H-type nanofibers (Agg II) are obtained from the identical initial state in solution of methyl cyclohexane (MCH) or MCH/CHCl3 mixtures.

Subacute PM2.5 Exposure Induces Hepatic Insulin Resistance Through Inflammation and Oxidative Stress.

Epidemiological studies prove that type II diabetes, characterized by insulin resistance (IR), may be caused by fine particulate matter 2.5 (PM2.5).

LncRNA GAS5 reduces blood glucose levels and alleviates renal fibrosis in diabetic nephropathy by regulating the miR-542-3p/ERBB4 axis.

Objective: The present study was implemented to unravel the effect of lncRNA GAS5 on renal fibrosis induced by diabetic nephropathy (DN) by regulating the miR-542-3p/ERBB4 axis.

Methods: db/db mice were injected with lncRNA GAS5 high expression or miR-542-3p low expression related vectors. Biochemical experiments were performed to assess blood glucose level and urine protein concentration.

Energy Aggregation for Illuminating Upconversion Multicolor Emission Based on Ho Ions.

Lanthanide-doped upconversion luminescent nanoparticles (UCNPs) have garnered extensive attention due to their notable anti-Stokes shifts and superior photostability. Notably, Ho-based UCNPs present a complex energy level configuration, which poses challenges in augmenting their luminescence efficiency. Herein, a rational design strategy was used to enhance the upconversion luminescence intensity of Ho ions by improving the photon absorption ability and energy utilization efficiency.